Flushing The Toilet Is About To Become More Expensive For Customers Of Bristol Virginia Utilities. The BVU Authority Board Of Directors Has Given The Green Light For A Proposed 15 Percent Increase In Sewer Rates. The Rate Would Go Into Effect July First, But A Second Reading Is Required Before Its Finalized. Agency Officials Said The Additional Funds Would Go Toward Covering The Anticipated Costs Of The First Phase Of A 13.2 Million Dollar Upgrade For The Sewage Treatment System.